On an imx6dl-pico-pi board with a QCA9377 SDIO chip, simply trying to
connect via ssh to another machine causes:
[ 55.824159] ath10k_sdio mmc1:0001:1: failed to transmit packet, dropping: -12
[ 55.832169] ath10k_sdio mmc1:0001:1: failed to submit frame: -12
[ 55.838529] ath10k_sdio mmc1:0001:1: failed to push frame: -12
[ 55.905863] ath10k_sdio mmc1:0001:1: failed to transmit packet, dropping: -12
[ 55.913650] ath10k_sdio mmc1:0001:1: failed to submit frame: -12
[ 55.919887] ath10k_sdio mmc1:0001:1: failed to push frame: -12
, leading to an ssh connection failure.
One user inspected the size of frames on Wireshark and reported
the followig:
"I was able to narrow the issue down to the mtu. If I set the mtu for
the wlan0 device to 1486 instead of 1500, the issue does not happen.
The size of frames that I see on Wireshark is exactly 1500 after
setting it to 1486."
Clearing the HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE avoids the problem and
the ssh command works successfully after that.
Introduce a 'credit_size_workaround' field to ath10k_hw_params for
the QCA9377 SDIO, so that the HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE
is not set in this case.
Tested with QCA9377 SDIO with firmware WLAN.TF.1.1.1-00061-QCATFSWPZ-1.
Fixes: 2f918ea98606 ("ath10k: enable alt data of TX path for sdio")
Signed-off-by: Fabio Estevam <[email protected]>
---
Changes since v2:
- Set the credit_size_workaround field as true for QCA9377 SDIO.
drivers/net/wireless/ath/ath10k/core.c | 4 +++-
drivers/net/wireless/ath/ath10k/hw.h | 3 +++
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 72a366aa9f60..8a325ae97b0e 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -571,6 +571,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
.ast_skid_limit = 0x10,
.num_wds_entries = 0x20,
.uart_pin_workaround = true,
+ .credit_size_workaround = true,
.dynamic_sar_support = false,
},
{
@@ -715,6 +716,7 @@ static void ath10k_send_suspend_complete(struct ath10k *ar)
static int ath10k_init_sdio(struct ath10k *ar, enum ath10k_firmware_mode mode)
{
+ bool mtu_workaround = ar->hw_params.credit_size_workaround;
int ret;
u32 param = 0;
@@ -732,7 +734,7 @@ static int ath10k_init_sdio(struct ath10k *ar, enum ath10k_firmware_mode mode)
param |= HI_ACS_FLAGS_SDIO_REDUCE_TX_COMPL_SET;
- if (mode == ATH10K_FIRMWARE_MODE_NORMAL)
+ if (mode == ATH10K_FIRMWARE_MODE_NORMAL && !mtu_workaround)
param |= HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE;
else
param &= ~HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE;
diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index 6b03c7787e36..591ef7416b61 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -618,6 +618,9 @@ struct ath10k_hw_params {
*/
bool uart_pin_workaround;
+ /* Workaround for the credit size calculation */
+ bool credit_size_workaround;
+
/* tx stats support over pktlog */
bool tx_stats_over_pktlog;
--
2.25.1
Fabio Estevam <[email protected]> writes:
> On an imx6dl-pico-pi board with a QCA9377 SDIO chip, simply trying to
> connect via ssh to another machine causes:
>
> [ 55.824159] ath10k_sdio mmc1:0001:1: failed to transmit packet, dropping: -12
> [ 55.832169] ath10k_sdio mmc1:0001:1: failed to submit frame: -12
> [ 55.838529] ath10k_sdio mmc1:0001:1: failed to push frame: -12
> [ 55.905863] ath10k_sdio mmc1:0001:1: failed to transmit packet, dropping: -12
> [ 55.913650] ath10k_sdio mmc1:0001:1: failed to submit frame: -12
> [ 55.919887] ath10k_sdio mmc1:0001:1: failed to push frame: -12
>
> , leading to an ssh connection failure.
>
> One user inspected the size of frames on Wireshark and reported
> the followig:
>
> "I was able to narrow the issue down to the mtu. If I set the mtu for
> the wlan0 device to 1486 instead of 1500, the issue does not happen.
>
> The size of frames that I see on Wireshark is exactly 1500 after
> setting it to 1486."
>
> Clearing the HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE avoids the problem and
> the ssh command works successfully after that.
>
> Introduce a 'credit_size_workaround' field to ath10k_hw_params for
> the QCA9377 SDIO, so that the HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE
> is not set in this case.
>
> Tested with QCA9377 SDIO with firmware WLAN.TF.1.1.1-00061-QCATFSWPZ-1.
>
> Fixes: 2f918ea98606 ("ath10k: enable alt data of TX path for sdio")
> Signed-off-by: Fabio Estevam <[email protected]>
> ---
> Changes since v2:
> - Set the credit_size_workaround field as true for QCA9377 SDIO.
>
> drivers/net/wireless/ath/ath10k/core.c | 4 +++-
> drivers/net/wireless/ath/ath10k/hw.h | 3 +++
> 2 files changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
> index 72a366aa9f60..8a325ae97b0e 100644
> --- a/drivers/net/wireless/ath/ath10k/core.c
> +++ b/drivers/net/wireless/ath/ath10k/core.c
> @@ -571,6 +571,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
> .ast_skid_limit = 0x10,
> .num_wds_entries = 0x20,
> .uart_pin_workaround = true,
> + .credit_size_workaround = true,
I prefer to have also the false cases for every hardware so in the
pending branch I added those:
https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git/commit/?h=pending&id=afbf52bffb36bc25e7a1e81e1f975bb75696d3c8
--
https://patchwork.kernel.org/project/linux-wireless/list/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
> On 1 Dec 2021, at 6:27 pm, Kalle Valo <[email protected]> wrote:
>
> Fabio Estevam <[email protected]> writes:
>
>> On an imx6dl-pico-pi board with a QCA9377 SDIO chip, simply trying to
>> connect via ssh to another machine causes:
>>
>> [ 55.824159] ath10k_sdio mmc1:0001:1: failed to transmit packet, dropping: -12
>> [ 55.832169] ath10k_sdio mmc1:0001:1: failed to submit frame: -12
>> [ 55.838529] ath10k_sdio mmc1:0001:1: failed to push frame: -12
>> [ 55.905863] ath10k_sdio mmc1:0001:1: failed to transmit packet, dropping: -12
>> [ 55.913650] ath10k_sdio mmc1:0001:1: failed to submit frame: -12
>> [ 55.919887] ath10k_sdio mmc1:0001:1: failed to push frame: -12
>>
>> , leading to an ssh connection failure.
>>
>> One user inspected the size of frames on Wireshark and reported
>> the followig:
>>
>> "I was able to narrow the issue down to the mtu. If I set the mtu for
>> the wlan0 device to 1486 instead of 1500, the issue does not happen.
>>
>> The size of frames that I see on Wireshark is exactly 1500 after
>> setting it to 1486."
>>
>> Clearing the HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE avoids the problem and
>> the ssh command works successfully after that.
>>
>> Introduce a 'credit_size_workaround' field to ath10k_hw_params for
>> the QCA9377 SDIO, so that the HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE
>> is not set in this case.
>>
>> Tested with QCA9377 SDIO with firmware WLAN.TF.1.1.1-00061-QCATFSWPZ-1.
>>
>> Fixes: 2f918ea98606 ("ath10k: enable alt data of TX path for sdio")
>> Signed-off-by: Fabio Estevam <[email protected]>
>> ---
>> Changes since v2:
>> - Set the credit_size_workaround field as true for QCA9377 SDIO.
>>
>> drivers/net/wireless/ath/ath10k/core.c | 4 +++-
>> drivers/net/wireless/ath/ath10k/hw.h | 3 +++
>> 2 files changed, 6 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
>> index 72a366aa9f60..8a325ae97b0e 100644
>> --- a/drivers/net/wireless/ath/ath10k/core.c
>> +++ b/drivers/net/wireless/ath/ath10k/core.c
>> @@ -571,6 +571,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
>> .ast_skid_limit = 0x10,
>> .num_wds_entries = 0x20,
>> .uart_pin_workaround = true,
>> + .credit_size_workaround = true,
>
> I prefer to have also the false cases for every hardware so in the
> pending branch I added those:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git/commit/?h=pending&id=afbf52bffb36bc25e7a1e81e1f975bb75696d3c8
^ for the patch in the pending branch, tested with an Amlogic S905D
TV box with QCA9377 SDIO module:
Tested-by: Christian Hewitt <[email protected]>
Hi Kalle,
On 01/12/2021 11:27, Kalle Valo wrote:
> I prefer to have also the false cases for every hardware so in the
> pending branch I added those:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git/commit/?h=pending&id=afbf52bffb36bc25e7a1e81e1f975bb75696d3c8
It looks good. Thanks for the adjustment.
Thanks,
Fabio Estevam
--
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Phone: (+49)-8142-66989-60 Fax: (+49)-8142-66989-80 Email:
[email protected]
Fabio Estevam <[email protected]> wrote:
> On an imx6dl-pico-pi board with a QCA9377 SDIO chip, simply trying to
> connect via ssh to another machine causes:
>
> [ 55.824159] ath10k_sdio mmc1:0001:1: failed to transmit packet, dropping: -12
> [ 55.832169] ath10k_sdio mmc1:0001:1: failed to submit frame: -12
> [ 55.838529] ath10k_sdio mmc1:0001:1: failed to push frame: -12
> [ 55.905863] ath10k_sdio mmc1:0001:1: failed to transmit packet, dropping: -12
> [ 55.913650] ath10k_sdio mmc1:0001:1: failed to submit frame: -12
> [ 55.919887] ath10k_sdio mmc1:0001:1: failed to push frame: -12
>
> , leading to an ssh connection failure.
>
> One user inspected the size of frames on Wireshark and reported
> the followig:
>
> "I was able to narrow the issue down to the mtu. If I set the mtu for
> the wlan0 device to 1486 instead of 1500, the issue does not happen.
>
> The size of frames that I see on Wireshark is exactly 1500 after
> setting it to 1486."
>
> Clearing the HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE avoids the problem and
> the ssh command works successfully after that.
>
> Introduce a 'credit_size_workaround' field to ath10k_hw_params for
> the QCA9377 SDIO, so that the HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE
> is not set in this case.
>
> Tested with QCA9377 SDIO with firmware WLAN.TF.1.1.1-00061-QCATFSWPZ-1.
>
> Fixes: 2f918ea98606 ("ath10k: enable alt data of TX path for sdio")
> Signed-off-by: Fabio Estevam <[email protected]>
> Signed-off-by: Kalle Valo <[email protected]>
Patch applied to ath-next branch of ath.git, thanks.
09b8cd69edcf ath10k: Fix the MTU size on QCA9377 SDIO
--
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